US9914422B2 - Structure for deploying seat side airbag - Google Patents
Structure for deploying seat side airbag Download PDFInfo
- Publication number
- US9914422B2 US9914422B2 US15/265,410 US201615265410A US9914422B2 US 9914422 B2 US9914422 B2 US 9914422B2 US 201615265410 A US201615265410 A US 201615265410A US 9914422 B2 US9914422 B2 US 9914422B2
- Authority
- US
- United States
- Prior art keywords
- exterior
- interior
- reinforcing fabric
- coupled
- covering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5816—Seat coverings attachments thereof
- B60N2/5833—Seat coverings attachments thereof by hook-and-loop type fasteners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5816—Seat coverings attachments thereof
- B60N2/5883—Seat coverings attachments thereof by sewing, stitching or threading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
- B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
- B60R2021/0044—Chest
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R2021/161—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by additional means for controlling deployment trajectory
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
- B60R2021/2076—Removable covers with tear seams
Definitions
- the present invention relates to a structure for deploying a side airbag installed in a seat of a vehicle, and more particularly, to a structure for deploying seat side airbag, which improves broadside collision performance and prevents gas in the side airbag from being rapidly discharged, by setting a deployment path of the side airbag using an interior reinforcing fabric and an exterior reinforcing fabric.
- a vehicle is provided with safety devices to protect occupants during a collision or a rollover accident and a typical safety device is an airbag apparatus that directly protects an occupant seated in a driver seat or a front passenger seat within the vehicle.
- the airbag apparatus inflates at a high speed as compressed gas is instantaneously injected into the airbag by external impact force and protects the occupant from colliding with an object.
- side airbags for passenger protection during a broadside collision of a vehicle has been adapted along with front airbags for passenger protection during a frontal collision.
- the airbag apparatus When the airbag apparatus is abnormally (e.g., not typically) deployed, an occupant may be injured due to impact caused by the airbag apparatus. Additionally, the airbag apparatus may be abnormally deployed toward a seat disposed within the internal passenger compartment.
- the airbag apparatus should be designed to be deployed at a sufficiently high speed to protect occupants and to reduce injuries to occupants due to the airbag inflating at a high speed.
- FIG. 1 is an exemplary view of the related art illustrating a typical structure for deploying a seat side airbag in the related art.
- FIG. 2 is an exemplary embodiment of a cross-sectional view taken along line A-A′ in FIG. 1 .
- the structure for deploying a seat side airbag in the related art includes a pad 2 in which a side airbag 1 is installed and embedded, a covering 3 that surrounds the pad 2 , a reinforcing fabric 4 , such as oxford fabric, disposed within the interior of the pad 2 and integrally coupled to the covering 3 and a backing cloth 5 disposed on the exterior of the pad 2 and integrally coupled to the covering 3 .
- an interior guide 6 and an exterior guide 7 formed from hard material are installed within the interior and on the exterior of the side airbag, respectively, to prevent the side airbag from being abnormally deployed into a seat within the passenger compartment or prevent a delay of deployment caused by an elongation percentage of the covering.
- a bottom out phenomenon occurs when the side airbag is deployed.
- the side airbag is compressed by the interior guide 6 and the exterior guide 7 and gas in the side airbag is rapidly discharged.
- the passenger comes into contact with hard components such as a door trim and as a result an improvement of collision performance is difficult. Accordingly, production costs and weights are increased due to the application of the interior guide 6 and the exterior guide 7 and profitability and fuel economy of a vehicle are adversely affected.
- the present invention provides a structure for deploying a seat side airbag capable of reducing a likelihood of chest injuries when a collision occurs and provides improved adjustment of collision performance by omitting an interior guide and an exterior guide in the related art.
- the present provides a structure that deploys a seat side airbag that may couple an interior reinforcing fabric and an exterior reinforcing fabric to a seat frame by a single fixing device, to improve the assembly process and reduce production costs and weight.
- An exemplary embodiment of the present invention provides a structure for deploying a seat side airbag, the structure may include an interior pad disposed adjacent to a first side of a side airbag and has an exterior portion surrounded by an interior covering, an exterior pad disposed adjacent to a second side of the side airbag and has an exterior portion surrounded by an exterior covering, an interior reinforcing fabric which penetrates a pad through portion formed between the interior pad and the exterior pad and surrounds a portion of the side airbag and an exterior reinforcing fabric which is integrally coupled to the exterior covering and surrounds the exterior portion of the exterior pad, in which the interior reinforcing fabric may be spaced apart from the interior covering and disposed in a path different from a path of the interior covering.
- a first end of the exterior reinforcing fabric may be coupled to the exterior covering, and a second end of the exterior reinforcing fabric, together with the exterior covering, may be coupled to a fixing device coupled to a seatback frame.
- the fixing device may be a W-shaped hook
- the exterior reinforcing fabric may be coupled to a first end of the W-shaped hook
- one side of a second end of the W-shaped hook may be coupled by being caught by the seatback frame.
- a first end of the exterior reinforcing fabric may be coupled to a first end of the exterior covering by sewing, and the second end of the exterior reinforcing fabric may be coupled to the second end of the fixing device by sewing or any other fastening mechanism.
- a first end of the interior reinforcing fabric may be coupled to a first end of the interior covering, and a second end of the interior reinforcing fabric may be coupled to the fixing device.
- the exterior reinforcing fabric may be coupled to a first end of the fixing device, a first side of a second end of the fixing device may be coupled to the seatback frame, and a second side of a second end of the fixing device may be coupled to the interior reinforcing fabric. Additionally, in some exemplary embodiments of the present invention, the exterior reinforcing fabric and the interior reinforcing fabric may be coupled to the seatback frame by the single fixing device. The exterior reinforcing fabric and the interior reinforcing fabric may form a closed cross section. In further exemplary embodiments, a J-shaped hook may be coupled to a second end of the interior reinforcing fabric and the interior reinforcing fabric may be fixed as the fixing device is configured to capture the J-shaped hook.
- a first end of the interior reinforcing fabric may be coupled to a first end of the interior covering by sewing and a second end of the interior reinforcing fabric may be coupled to the J-shaped hook by sewing.
- ends of the interior covering and the exterior covering may be disposed adjacent to each other based on the pad aperture portion and the ends of the interior covering and the exterior covering, may be disposed adjacent to each other may be coupled to each other by sewing.
- the interior guide and the exterior guide in the related art may be omitted and substituted with the exterior reinforcing fabric and the interior reinforcing fabric that may be spaced apart from the interior covering and surrounds the side airbag.
- the interior reinforcing fabric formed from a flexible material may contact the chest of the passenger during a broadside collision of a vehicle, and collision performance may be adjusted.
- the interior reinforcing fabric and the exterior reinforcing fabric do not sufficiently compress the side airbag, a bottom out phenomenon which compresses gas that may be rapidly discharged and as a result, the passenger may be prevented from coming into contact with a hard component such as a door trim.
- the interior deployment prevention structure and the exterior deployment prevention structure may be fastened simultaneously by the single fixing device improved assembly of the interior reinforcing fabric and the exterior reinforcing fabric may be achieved.
- the interior guide and the exterior guide in the related art may be omitted, production costs and overall weight may be reduced. Accordingly, the marketability of a vehicle and fuel economy of a vehicle may be improved.
- FIG. 1 is an exemplary view illustrating a typical structure for deploying a seat side airbag in the related art
- FIG. 2 is an exemplary cross-sectional view taken along line A-A′ of FIG. 1 according to the related art
- FIG. 3 is an exemplary cross-sectional view illustrating an appearance of a structure for deploying a seat side airbag according to an exemplary embodiment of the present invention
- FIG. 4 is an exemplary enlarged view of part A in FIG. 3 according to an exemplary embodiment of the present invention.
- FIG. 5 is an exemplary enlarged view of part B in FIG. 3 according to an exemplary embodiment of the present invention.
- the present invention may be implemented in various different ways, and is not limited to the exemplary embodiment described herein. A part irrelevant to the description will be omitted to clearly describe the present invention, and the same or similar constituent elements will be designated by the same reference numerals throughout the specification.
- a layer is “on” another layer or substrate, the layer may be directly on another layer or substrate or a third layer may be disposed there between.
- vehicle or “vehicular” or other similar term as used herein is inclusive of motor vehicle in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats, ships, aircraft, and the like and includes hybrid vehicles, electric vehicles, combustion, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum).
- motor vehicle in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats, ships, aircraft, and the like and includes hybrid vehicles, electric vehicles, combustion, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum).
- SUV sports utility vehicles
- plug-in hybrid electric vehicles e.g. fuels derived from resources other than petroleum
- FIG. 3 is an exemplary cross-sectional view illustrating an appearance of a structure for deploying a seat side airbag according to an exemplary embodiment of the present invention.
- the structure for deploying the seat side airbag according to the exemplary embodiment may include an interior pad 20 disposed adjacent to a first side (e.g., left side in the illustrated exemplary embodiment) of a side airbag 10 and has an exterior portion surrounded by an interior covering 30 and an exterior pad 22 disposed adjacent to a second side (e.g., right side in the illustrated exemplary embodiment) of the side airbag 10 and has an exterior portion surrounded by an exterior covering 32 .
- the interior pad 20 and the exterior pad 22 may be spaced apart from each other at a predetermined distance.
- a pad aperture portion 24 may be formed between the interior pad 20 and the exterior pad 22 .
- An interior reinforcing fabric 40 may be penetratively inserted into the pad aperture portion 24 to surround a first side of the side airbag 10 .
- disposed within the interior of a pad 2 may be integrally coupled to a covering 3 .
- the interior reinforcing fabric 40 according to the present invention may be spaced apart from the interior covering 30 and disposed in a path different from a path of the interior covering.
- An exterior reinforcing fabric 42 may be integrally coupled to the exterior covering 32 to surround the exterior portion of the exterior pad 22 .
- the interior reinforcing fabric 40 according to the present invention may be disposed along a path different from a path of the interior covering 30 .
- the exterior reinforcing fabric 42 and the exterior covering 32 may be disposed along the same path.
- the exterior reinforcing fabric 42 may be configured to guide the side airbag 10 .
- the interior reinforcing fabric 40 and the exterior reinforcing fabric 42 may be formed of a material typical of an oxford fabric or the like having appropriate elasticity and appropriate tensile strength and may be formed from a flexible material unlike the interior guide 6 (e.g., as shown in FIG. 1 ) or the exterior guide 7 in the related art which serves to guide the side airbag.
- the present invention since the present invention may be configured to guide the side airbag using the interior reinforcing fabric 40 and the exterior reinforcing fabric 42 formed from a flexible material, the likelihood of injuries to a passenger during a broadside collision of a vehicle may be reduced. Accordingly, collision performance may be adjusted and may prevent a bottom out phenomenon when compressed gas is rapidly discharged.
- FIG. 4 is an exemplary enlarged view of part A in FIG. 3 .
- a first end (e.g., front end in the illustrated exemplary embodiment) of the exterior reinforcing fabric 42 may be coupled to a first end of the exterior covering 32 .
- the second end (e.g., rear end in the illustrated exemplary embodiment) of the exterior reinforcing fabric 42 and the exterior covering 32 may be coupled to a fixing device 50 coupled to a seatback frame 12 .
- the first end and the second end of the exterior reinforcing fabric 42 may be coupled to the first end of the exterior covering 32 and the first end of the fixing device 50 , respectively, by sewing.
- the fixing device 50 any device may be used as long as this fixing device may couple the interior reinforcing fabric 40 and the exterior reinforcing fabric 42 to the seatback frame 12 at the same time.
- the fixing device 50 may be a W-shaped hook.
- a first end (e.g., central portion) of the W-shaped hook may be elongated and coupled to the exterior reinforcing fabric 42 .
- a catching portions 52 may be formed at the first side of the second end (e.g., right side) of the W-shaped hook and may be coupled to and configured to be captured by the seatback frame 12 .
- the first end (e.g., front end illustrated in the exemplary embodiment) of the interior reinforcing fabric 40 may be coupled to the first end of the interior covering 30 .
- the second end (e.g., rear end in the illustrated exemplary embodiment) of the interior reinforcing fabric 40 may be coupled to the fixing device 50 coupled to the seatback frame 12 .
- the exterior reinforcing fabric 42 may be coupled to the first end (e.g., central portion) of the fixing device 50 .
- the first side of the second end (e.g., right side) of the fixing device 50 may be coupled to the seatback frame 12 .
- the interior reinforcing fabric 40 may be coupled to the second side of the second end (e.g., left side) of the fixing device 50 .
- the exterior reinforcing fabric 42 and the interior reinforcing fabric 40 may be coupled to the seatback frame 12 by the single fixing device 50 .
- the exterior reinforcing fabric 42 and the interior reinforcing fabric 40 may form a closed cross section. Accordingly, an interior deployment prevention structure and an exterior deployment prevention structure may be fastened at the same time and the assembly of the interior reinforcing fabric and the exterior reinforcing fabric may be improved. Further, the side airbag may be prevented from being deployed at a portion other than a tear line 34 to be described below.
- a J-shaped hook 40 a may be coupled to the second end of the interior reinforcing fabric 40 .
- the J-shaped hook 40 a may be captured by the catching portion 52 formed on the W-shaped hook (e.g., fixing device, 50 ) to fix the interior reinforcing fabric 40 .
- the first end of the interior reinforcing fabric 40 may be coupled to the first end of the interior covering 30 by sewing.
- the second end of the interior reinforcing fabric 40 may be coupled to the J-shaped hook 40 a by sewing (e.g., detachable fastening technique).
- FIG. 5 is an exemplary an enlarged view of part B in FIG. 3 .
- the ends of the interior covering 30 and the exterior covering 32 may be disposed adjacent to each other based on the pad aperture portion 24 .
- the ends of the interior covering 30 and the exterior covering 32 may be disposed each other and may be coupled to each other by sewing as indicated by a dotted line in FIG. 3 .
- a sewing line between the interior covering 30 and the exterior covering 32 becomes the tear line 34 .
- the tear line 34 may be torn to allow the side airbag to protrude at a proper position.
- the interior reinforcing fabric 40 and the exterior reinforcing fabric 42 may be configured to set a path of the side airbag.
- the interior guide 6 e.g., as shown in FIGS. 1 and 2
- the exterior guide 7 in the related art are omitted and substituted with the exterior reinforcing fabric 42 .
- the interior reinforcing fabric 40 may be spaced apart from the interior covering and surrounds the side airbag.
- the interior reinforcing fabric 40 may be formed from a flexible material that contact the chest of the passenger during a broadside collision of a vehicle. Accordingly, and as a result, collision performance may be easily adjusted. Since the interior reinforcing fabric 40 and the exterior reinforcing fabric 42 do not sufficiently compress the side airbag, a bottom out phenomenon in which compressed gas is rapidly discharged may be prevented. Namely, the passenger may be prevented from coming into contact with a hard component (e.g., a door trim).
- a hard component e.g., a door trim
- the interior deployment prevention structure and the exterior deployment prevention structure may be fastened at the same time by the single fixing device 50 the assembly of the interior reinforcing fabric and the exterior reinforcing fabric may be improved.
- the interior guide 6 and the exterior guide 7 in the related art may be omitted and production costs and weights may be reduced.
- the marketability of a vehicle and fuel economy of a vehicle may be improved.
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- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Textile Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2016-0048665 | 2016-04-21 | ||
KR1020160048665A KR20170120336A (en) | 2016-04-21 | 2016-04-21 | Guide structure of seat side air bag |
Publications (2)
Publication Number | Publication Date |
---|---|
US20170305377A1 US20170305377A1 (en) | 2017-10-26 |
US9914422B2 true US9914422B2 (en) | 2018-03-13 |
Family
ID=60089353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/265,410 Active US9914422B2 (en) | 2016-04-21 | 2016-09-14 | Structure for deploying seat side airbag |
Country Status (3)
Country | Link |
---|---|
US (1) | US9914422B2 (en) |
KR (1) | KR20170120336A (en) |
CN (1) | CN107303886A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10252690B2 (en) * | 2016-07-18 | 2019-04-09 | Hyundai Dymos Incorporated | Side airbag guide and vehicle seat with side airbag using same |
US10343637B2 (en) * | 2015-07-07 | 2019-07-09 | Toyota Boshoku America, Inc. | Mistake proof brackets for installation of seat trim cover airbag strip to a seat frame |
US20240010154A1 (en) * | 2022-07-06 | 2024-01-11 | Tachi-S Co., Ltd. | Fixing structure of webbing |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6462515B2 (en) * | 2015-07-21 | 2019-01-30 | 株式会社イノアックコーポレーション | Seat back side and base material for seat back side |
US9932012B1 (en) * | 2016-12-19 | 2018-04-03 | Ford Global Technologies, Llc | Inner carrier and back panel having alternating trim and side airbag attachments |
CN108032829A (en) * | 2017-12-12 | 2018-05-15 | 奇瑞汽车股份有限公司 | A kind of automobile seat side airbag setting structure |
KR102044889B1 (en) | 2018-05-14 | 2019-11-14 | 현대트랜시스 주식회사 | Guide structure for side air bag |
KR102041510B1 (en) | 2018-05-14 | 2019-11-06 | 현대트랜시스 주식회사 | Guide structure of side air bag |
KR20190130418A (en) | 2018-05-14 | 2019-11-22 | 현대트랜시스 주식회사 | Guide structure for side air bag |
KR20220076901A (en) | 2020-12-01 | 2022-06-08 | 현대모비스 주식회사 | Seat airbag system and it’s control method for vehicle |
KR102512647B1 (en) * | 2021-01-08 | 2023-03-23 | 현대트랜시스 주식회사 | Structure for Side Air-Bag of Seat for Vehicle |
KR20220112056A (en) | 2021-02-03 | 2022-08-10 | 현대모비스 주식회사 | Seat system for vehicle and method for controlling seat for vehicle |
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- 2016-04-21 KR KR1020160048665A patent/KR20170120336A/en not_active Application Discontinuation
- 2016-09-14 US US15/265,410 patent/US9914422B2/en active Active
- 2016-09-30 CN CN201610898772.0A patent/CN107303886A/en active Pending
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JP2015051700A (en) | 2013-09-06 | 2015-03-19 | テイ・エス テック株式会社 | Seat equipped with air bag module |
JP2015147431A (en) | 2014-02-04 | 2015-08-20 | テイ・エス テック株式会社 | Seat equipped with air bag module |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US10343637B2 (en) * | 2015-07-07 | 2019-07-09 | Toyota Boshoku America, Inc. | Mistake proof brackets for installation of seat trim cover airbag strip to a seat frame |
US10252690B2 (en) * | 2016-07-18 | 2019-04-09 | Hyundai Dymos Incorporated | Side airbag guide and vehicle seat with side airbag using same |
US20240010154A1 (en) * | 2022-07-06 | 2024-01-11 | Tachi-S Co., Ltd. | Fixing structure of webbing |
Also Published As
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CN107303886A (en) | 2017-10-31 |
KR20170120336A (en) | 2017-10-31 |
US20170305377A1 (en) | 2017-10-26 |
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